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New option --ignore-case.

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This commit is contained in:
Bruno Haible
2003-04-02 09:26:05 +00:00
parent 0093e33163
commit 7dfd32b736
15 changed files with 583 additions and 39 deletions
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14
src/keyword.cc
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@@ -59,7 +59,7 @@ static inline void sort_char_set (unsigned int *base, int len)
*/
unsigned int *
KeywordExt::init_selchars_low (bool use_all_chars, const Positions& positions, const unsigned int *alpha_inc)
KeywordExt::init_selchars_low (bool use_all_chars, const Positions& positions, const unsigned int *alpha_unify, const unsigned int *alpha_inc)
{
const char *k = _allchars;
unsigned int *key_set =
@@ -73,6 +73,8 @@ KeywordExt::init_selchars_low (bool use_all_chars, const Positions& positions, c
unsigned int c = static_cast<unsigned char>(*k);
if (alpha_inc)
c += alpha_inc[k-_allchars];
if (alpha_unify)
c = alpha_unify[c];
*ptr = c;
ptr++;
}
@@ -99,6 +101,8 @@ KeywordExt::init_selchars_low (bool use_all_chars, const Positions& positions, c
else
/* Out of range of KEY length, so we'll just skip it. */
continue;
if (alpha_unify)
c = alpha_unify[c];
*ptr = c;
ptr++;
}
@@ -111,16 +115,16 @@ KeywordExt::init_selchars_low (bool use_all_chars, const Positions& positions, c
}
void
KeywordExt::init_selchars_tuple (bool use_all_chars, const Positions& positions)
KeywordExt::init_selchars_tuple (bool use_all_chars, const Positions& positions, const unsigned int *alpha_unify)
{
init_selchars_low (use_all_chars, positions, NULL);
init_selchars_low (use_all_chars, positions, alpha_unify, NULL);
}
void
KeywordExt::init_selchars_multiset (bool use_all_chars, const Positions& positions, const unsigned int *alpha_inc)
KeywordExt::init_selchars_multiset (bool use_all_chars, const Positions& positions, const unsigned int *alpha_unify, const unsigned int *alpha_inc)
{
unsigned int *selchars =
init_selchars_low (use_all_chars, positions, alpha_inc);
init_selchars_low (use_all_chars, positions, alpha_unify, alpha_inc);
/* Sort the selchars elements alphabetically. */
sort_char_set (selchars, _selchars_length);